html {
    font-family: "Helvetica Neue",Helvetica, sans-serif;
    /*�ȸ������������С����12px*/
    -webkit-text-size-adjust: 100%;/*100%/none �ر������С�Զ���������*/
    /*a��ǩ��ӵ�� :activeα���Ԫ����Ĭ�ϵĸ�����*/
    -webkit-tap-hightlight-color: transparent;
    /*��ֹ�ı���ѡ��*/
    -webkit-user-select: none;
}
body{<br>�������� font-family: Helvetica;
    overflow-x:hidden;
    /*����moblie��ҳ���ٹ����ͻص���Ч��*/
    -webkit-overflow-scrolling: touch;
    font-size: 12px;
}
*{
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}
/* a{
    display:block;
    width:100%;
    color: #333;
    text-decoration: none;
} */
img{
    border: 0;
    display: block;
    width:100%;
    vertical-align: middle;
}
/* a, img {
        -webkit-touch-callout:none;
} */
input,textarea{
    -webkit-appearance: none;
    outline: none;
    border: none;
}
 
.fl{
    float:left;
}
.fr{
    float:right;
}
.clearfix:after{
    content:"";
    display:block;
    width:100%;
    height:0;
    clear:both;
}
li,ol{
    list-style:none;
} 
/*�޸�placeholder��������ɫ*/
input:-moz-placeholder { /* Mozilla Firefox 4 to 18 */ 
    color: #000;  
} 
input::-moz-placeholder { /* Mozilla Firefox 19+ */ 
    color: #000; 
} 
input:-ms-input-placeholder{ 
    color: #000; 
} 
input::-webkit-input-placeholder{ 
    color: #000; 
}  